Browse Water Systems

20,012 public water systems in CA.

Public Water Systems Database

Browse 20,012 EPA-regulated public water systems with identifiers, population served, and water source type. Use the filters below to narrow results by state, system type, or name.

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System Name PWSID State Type Population Served
GORMAN ELEMENTARY SCHOOL CA1900912 California Non-Transient Non-Community 98
SAND DOLLAR BEACH CSA 5 CA4400601 California Community 98
GRIER MUTUAL WATER COMPANY CA5400728 California Community 98
FIVE POINTS RANCH CA1009020 California Community 98
WILBUR HOT SPRINGS CA0600016 California Transient Non-Community 97
LONG BARN PROPERTY OWNERS CA5500057 California Community 97
BIG SPRINGS MUTUAL WATER SYSTEM CA4500027 California Community 97
SIKH TEMPLE MODESTO-CERES CA5000512 California Transient Non-Community 97
VALLEY VIEW ESTATES MUTUAL WATER CO CA1500569 California Community 97
FLRISH FARMS WS CA2700147 California Non-Transient Non-Community 97
NINDES STORE VA6099300 California Community 97
HUNTER VALLEY CSD CA0800557 California Community 96
RED ROOSTER CAMP CA3301544 California Transient Non-Community 96
Yurok - Wautec 090600134 California Community 96
USFS BEARDSLEY CAMPGROUND CA5500358 California Transient Non-Community 96
OCOTILLO OASIS, LLC CA3700291 California Community 96
UPPER LINE CREEK IMPRVMNT ASSN CA1000076 California Transient Non-Community 96
SAN CLEMENTE RANCHO WS CA2701325 California Transient Non-Community 96
CASTILE CANYON SCHOOL CA3302054 California Community 96
USFS-JERKEY MEADOW TRAILHEAD / UHL WC CA5403034 California Transient Non-Community 96
CAL AM WATER COMPANY - RALPH LANE CA2702004 California Community 96
SOUTH SANDS RV PARK TX0040062 California Transient Non-Community 96
BELLEVIEW ELEMENTARY SCHOOL CA5500137 California Transient Non-Community 96
CALIFORNIA CITRUS ASSOCIATION CA5403106 California Non-Transient Non-Community 96
VILLA ROBLES WATER SYSTEM CA3500929 California Transient Non-Community 96
GRANGER DENTAL IN2710188 California Transient Non-Community 95
TUCKER OAKS EAST WATER DISTRICT CA4500303 California Community 95
JEFF RUNQUIST WINERY CA0300089 California Transient Non-Community 95
FRIEDMAN BROTHERS HARDWARE CA4900812 California Non-Transient Non-Community 95
FOREST GLEN CAMPGROUND CA5300112 California Transient Non-Community 95
CSP LABS & MICRO PARADOX CA5105013 California Non-Transient Non-Community 95
MILK SPECIALTIES GLOBAL CA5402050 California Non-Transient Non-Community 95
SUPER STOP CA5403009 California Transient Non-Community 95
MT BROOK MOBILE HOME PARK CA4400777 California Community 95
TNF-INDIAN VALLEY/ROCKY REST CG CA4600075 California Transient Non-Community 95
TNF-CHAPMAN CG CA4600081 California Transient Non-Community 95
MINTURN HULLER CA2400250 California Transient Non-Community 95
DOMINICKS FINER FOODS #4104 IL3137182 California Transient Non-Community 95
INSLEE'S TRAILER PARK CA3600392 California Community 95
LITTLE RIVER INN CA2300617 California Non-Transient Non-Community 95
CSP WEAVERVILLE JOSS HOUSE CA5310300 California Transient Non-Community 95
TALL TIMBER TRAVEL TRAILER PARK FL3421528 California Community 95
SANTIAGO RANCH CA1502243 California Transient Non-Community 95
WASHINGTON RIDGE CONS CAMP CA2910800 California Transient Non-Community 95
YOKOHL MUTUAL WATER CO CA5400647 California Community 95
SUNSET ROAD MUTUAL WATER CO. CA4200522 California Community 95
Z D WINES CA2801056 California Non-Transient Non-Community 95
SUMMERHILL MHP WS CA2700792 California Community 95
PINE GROVE YOUTH CONSERVATION CA0000314 California Community 95
BUTANO STATE PARK - CSP CA4110029 California Transient Non-Community 95